Auto Exposure Algorithm Using Image Subregion and Variable Step Size
Kuang Ya · Video Engineering · 2015
Point at the question of the common algorithm can't suit for complex light condition such as backlight or front light,and real time and smooth are can't gave consideration at the same time,an auto exposure algorithm using image subregion and variable step size is given in the paper.The image is partitioned with the subject and background area,and the subject area is gave the more weight,and the step size is also adjusted according to the difference between the average brightness and the real brightness.The actual test results prove that the algorithm can get the perfect image in the complex light condition,as well as close to real brightness speedy and smoothly when the intensity of illumination changed.